Dating the maknae line of the group is not something easy for the japanese line. Not with the leader and the two oldest girls on their backs, and of course their "innocent", "adorable" and "nothing-of-a-tease" girlfriends.  How can they manage? Because dating the Maknae Line is a Challenge.  

 Seoul, capital of South Korea, the largest metropoly of the Republic, is home to thousands of people. A big city means danger, because even though Seoul is known for its turistical atractive, you have to be careful were you go and who you become friends with.   Seven girls had learnt to survive on the junggle of people called Seoul. What will happen when they finally meet each other? Who's that girl being chased by those boys? More importantly, how will Kim Dahyun explain everything